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首页> 美国卫生研究院文献>Heliyon >Surface water quality in a water run-off canal system: A case study in Jubail Industrial City Kingdom of Saudi Arabia
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Surface water quality in a water run-off canal system: A case study in Jubail Industrial City Kingdom of Saudi Arabia

机译：径流渠道系统中的地表水质量：以沙特阿拉伯王国朱拜勒工业城为例

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Water quality in a run-off canal system in an industrial area was evaluated for a range of physical and chemical properties comprising trace metals (including mercury (Hg), chromium (Cr), iron (Fe), manganese (Mn), salinity, pH, turbidity, total dissolved solids, total suspended solids, chemical oxygen demand (COD), and dissolved oxygen). High concentrations of potassium (K) (1.260–2.345 mg/l) and calcium (Ca) (19.170–35510 mg/l) demonstrated that the salinity in the water was high, which indicates that industrial effluents from fertilizer manufacturing and Chlor-alkali units are being discharged into the canal system. Almost all the metal concentrations in water and sediment were within the thresholds established by the local regulatory body. Concentrations of Cr (0.0154–0.0184 mg/l), Mn (0.0608–0.199 mg/l), Fe (0.023–0.035 mg/l), COD (807–916 mg/l), and turbidity (633 ± 15–783 ± 22 NTU) were high where the canal discharges into the Persian Gulf; these discharges may compromise the health of the aquatic ecosystem. There is concern about the levels of Hg in water (0.00135–0.0084 mg/l), suspended sediment (0.00308–0.0096 mg/l), and bed sediment (0.00172–0.00442 mg/l) because of the bio-accumulative nature of Hg. We also compared the total Hg concentrations in fish from Jubail, and two nearby cities. Hg contents were highest in fish tissues from Jubail. This is the first time that heavy metal pollution has been assessed in this water run-off canal system; information about Hg is of particular interest and will form the basis of an Hg database for the area that will be useful for future investigations.
机译：对工业区径流系统的水质进行了一系列物理和化学性能评估，包括痕量金属（包括汞（Hg），铬（Cr），铁（Fe），锰（Mn），盐度， pH，浊度，总溶解固体，总悬浮固体，化学需氧量（COD）和溶解氧）。高浓度的钾（1.260–2.345 mg / l）和钙（Ca）（19.170–35510 mg / l）表明水中的盐度很高，这表明化肥生产和氯碱工业废水单位被排入运河系统。水和沉积物中的几乎所有金属浓度都在当地监管机构设定的阈值之内。铬（0.0154–0.0184 mg / l），锰（0.0608–0.199 mg / l），铁（0.023–0.035 mg / l），化学需氧量（807–916 mg / l）和浊度（633±15–783） ±22 NTU）很高，运河排入波斯湾。这些排放物可能损害水生生态系统的健康。由于汞的生物蓄积性，人们对水（0.00135-0.0084 mg / l），悬浮沉积物（0.00308-0.0096 mg / l）和床沉积物（0.00172-0.00442 mg / l）中的汞含量存在担忧。我们还比较了朱拜勒和附近两个城市鱼中的总汞含量。朱拜勒鱼组织中的汞含量最高。这是首次在此径流渠道系统中评估重金属污染；有关汞的信息特别令人关注，它将构成该地区汞数据库的基础，这对将来的调查很有用。

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